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The screw on the machine seems loose; you need to tighten it up.
这机器的螺丝钉松了，你要上紧。
youdao
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This paper focuses on the study of the design theory of twin screw pulping machine.
本文对双螺杆磨浆机的设计理论进行了研究。
youdao
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This paper focuses on the study of the design theory of twin screw pulping machine.
本文对双螺杆磨浆机的设计理论进行了研究。
youdao